▎ 摘　　要

NOVELTY - Use of graphene oxide and Bacillus atrophifus for preventing Phytophthora in plants, is claimed. USE - The combined graphene oxide and Bacillus atrophifus and antifungal agent are useful for preventing Phytophthora, preferably Peronophthora litchi Phytophthora parasitica var. nicotianae Phytophthora sojae Phytophthra melonis and Phytophthora capsici in plants (all claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for antifungal agent for preventing Phytophthora, comprising graphene oxide and Bacillus atrophifus.